I literally said I was (mostly) doing a limited time re-run banner of old nominations I had that died in my heart long ago but I'm bringing back this one time since we have a bunch of new participants who may not have been around for the glory days of my despair as they died in nomination phase! blame my being caught by the gacha spirit.
Also, NFUN, fwiw, Class::CIEL_NOSURGE originated in... Ciel nosurge. At least I'm pretty sure no changes were made to it between games. (Unlike EXSPHERE_NOSURGE which had a "beta" version in Ciel nosurge that is different from the Ar nosurge/VGMC Champion one.)
Ciel doesn't have any Class:: songs besides the beta EXSPHERE, except for Neptlude and Code Ethes Wei where the full Class:: title is in parenthesis